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With cassette and with printing unit

A technology with printing and cassettes, which is applied in the direction of printing devices, printing, ink ribbon cassettes, etc., and can solve the problems of tape core tilting, tape core shaking, etc.

Active Publication Date: 2011-12-28
SEIKO EPSON CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, since the tape core is axially supported by the protrusion with a predetermined dimensional tolerance only by the rib, "wobbling" of the tape core, etc.
Therefore, when the force for pulling out the tape acts unevenly in the width direction of the tape, there is a problem that the tape core is inclined, and the tape is fed out while being inclined.

Method used

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  • With cassette and with printing unit
  • With cassette and with printing unit
  • With cassette and with printing unit

Examples

Experimental program
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no. 2 Embodiment approach

[0045] refer to Image 6 , the tape cassette 2 of the second embodiment will be described. In addition, descriptions similar to those of the first embodiment are omitted. Image 6 It is a plan view of the tape cassette 2 of the second embodiment in which the upper case 25a is omitted. In the tape cassette 2 of the second embodiment, the rotation guide portion 42 is arranged on the normal line of the position where the printing tape 21a is fed out and unwound. In this way, by providing the rotation guide 42 at the portion where the tilting force concentrates (the force applied is the largest), the belt core 21b can be reliably prevented from tilting, and stable rotation without "wobbling" can be ensured.

no. 3 Embodiment approach

[0047] Figure 7 (a) is a plan view of the tape cassette 2 of the third embodiment. In addition, descriptions similar to those of the first embodiment are omitted. In this tape cassette 2 , a plurality of (four in this embodiment) rotation guide portions 42 are provided at equal intervals in the circumferential direction of the shaft support portion 41 . In this case, the number and positions of the rotation guides 42 are arbitrary. According to this configuration, the inclination of the tape core 21b in multiple directions can be prevented, and "wobbling" of the tape core 21b can be reliably prevented.

[0048] (Modification of the third embodiment)

[0049] Figure 7 (b) is a plan view of a tape cassette 2 according to a modified example of the third embodiment. In this tape cassette 2 , the rotation guide portion 42 is provided over the entire circumference of the shaft support portion 41 . According to this structure, the inclination of the tape core 21b can be preve...

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PUM

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Abstract

A tape cartridge 2 includes a tape core 21b rotatably supported in a cartridge case 25 and houses a print tape 21a wound around the tape core 21b such that the print tape 21a can be unwound. The tape core 21b includes a core body 26 with the print tape 21a wound around an outer peripheral surface of the core body 26, a disk-like rib 27 provided at a middle portion in an axial direction of an inner peripheral surface of the core body 26, and a shaft hole 28 formed at an axis center of the rib 27. The cartridge case 25 includes a shaft support 41 that is inserted into the shaft hole 28 and rotatably supports the tape core 21b, and a rotation guide 42 that slides on the inner peripheral surface of the core body 26.

Description

technical field [0001] The present invention relates to a tape cassette and a tape printing apparatus in which a tape core is rotatably supported in a cassette case, and a tape wound around the tape core is housed in a feedable manner. Background technique [0002] Conventionally, there is known a tape cassette composed of a tape core having a core body and a disc-shaped rib, the core body having a tape wound around its outer peripheral surface, and a cassette case. The cartridge case is provided at the middle position of the inner peripheral surface of the core body and is rotatably supported by a protrusion of a lower case divided into upper and lower parts (refer to Patent Document 1). [0003] In the tape core of the tape cassette, since the rib is provided at the axially intermediate portion of the inner peripheral surface of the core body, the orientation of the tape core inserted through the protrusion can be any direction, and it is possible to prevent installation e...

Claims

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Application Information

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IPC IPC(8): B65H75/34
CPCG11B23/08707B41J32/00B41J15/044B41J15/04B41J3/4075
Inventor 小菅晋作
Owner SEIKO EPSON CORP
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